| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.hadoop.dfs; |
| |
| import junit.framework.TestCase; |
| import java.lang.System; |
| |
| /** |
| * This class tests the internals of PendingReplicationBlocks.java |
| */ |
| public class TestPendingReplication extends TestCase { |
| public void testPendingReplication() { |
| int timeout = 10; // 10 seconds |
| PendingReplicationBlocks pendingReplications; |
| pendingReplications = new PendingReplicationBlocks(timeout * 1000); |
| |
| // |
| // Add 10 blocks to pendingReplciations. |
| // |
| for (int i = 0; i < 10; i++) { |
| Block block = new Block(i, i); |
| pendingReplications.add(block, i); |
| } |
| assertEquals("Size of pendingReplications ", |
| 10, pendingReplications.size()); |
| |
| |
| // |
| // remove one item and reinsert it |
| // |
| Block blk = new Block(8, 8); |
| pendingReplications.remove(blk); // removes one replica |
| assertEquals("pendingReplications.getNumReplicas ", |
| 7, pendingReplications.getNumReplicas(blk)); |
| |
| for (int i = 0; i < 7; i++) { |
| pendingReplications.remove(blk); // removes all replicas |
| } |
| assertTrue(pendingReplications.size() == 9); |
| pendingReplications.add(blk, 8); |
| assertTrue(pendingReplications.size() == 10); |
| |
| // |
| // verify that the number of replicas returned |
| // are sane. |
| // |
| for (int i = 0; i < 10; i++) { |
| Block block = new Block(i, i); |
| int numReplicas = pendingReplications.getNumReplicas(block); |
| assertTrue(numReplicas == i); |
| } |
| |
| // |
| // verify that nothing has timed out so far |
| // |
| assertTrue(pendingReplications.getTimedOutBlocks() == null); |
| |
| // |
| // Wait for one second and then insert some more items. |
| // |
| try { |
| Thread.sleep(1000); |
| } catch (Exception e) { |
| } |
| |
| for (int i = 10; i < 15; i++) { |
| Block block = new Block(i, i); |
| pendingReplications.add(block, i); |
| } |
| assertTrue(pendingReplications.size() == 15); |
| |
| // |
| // Wait for everything to timeout. |
| // |
| int loop = 0; |
| while (pendingReplications.size() > 0) { |
| try { |
| Thread.sleep(1000); |
| } catch (Exception e) { |
| } |
| loop++; |
| } |
| System.out.println("Had to wait for " + loop + |
| " seconds for the lot to timeout"); |
| |
| // |
| // Verify that everything has timed out. |
| // |
| assertEquals("Size of pendingReplications ", |
| 0, pendingReplications.size()); |
| Block[] timedOut = pendingReplications.getTimedOutBlocks(); |
| assertTrue(timedOut != null && timedOut.length == 15); |
| for (int i = 0; i < timedOut.length; i++) { |
| assertTrue(timedOut[i].getBlockId() < 15); |
| } |
| } |
| } |